Not many ten year olds can say that they've interviewedKaty Perry, become best friends with Ellen Degeneres and traveled the world, but then there's Sophia Grace Brownlee. Ya know, the British ballerina who knows every pop song ever and became famous singing one with her cousin on YouTube?

Regardless, SG turns the big 1-0 today, and since we can't physically deliver a sparkly birthday cake to her like Ellen did (see below and then get jealous/hungry all at once), we'll do the next best thing—look back at our 10 favorite Sophia Grace and Rosie moments ever. Here we go…